求翻译：占采购作为一项重要的功能，必须纳入企业规划，以确保供应的条件反射。提供市场机会和威胁，忽视了企业的风险。 1976年，凯泽，表明采购部门有不同的任务，是保护公司的成本结构，降低采购成本，以确保长期供应安全，并与供应商保持良好的合作关系。表明，产品的生命周期可以为基础，选择不同的策略，不同的阶段。是什么意思？

Accounted for the procurement as an important function, must be included in business planning, to ensure the supply of conditioned reflex. Market opportunities and threats, to ignore the risks of an enterprise. In 1976, the Kaiser, the purchasing department has a different task is to protect the com

Purchase as an important feature and must be integrated into business planning to make sure the supply of conditioned reflex. Provide market opportunities, and threats, to the neglect of the risk to the business. In 1976, Kaiser, and showed that the procurement departments have different tasks is to

Occupies the purchase to take an important function, must integrate the business planning, guarantees the supply the conditioned reflex.Provides the market opportunity and the threat, has neglected enterprise's risk. In 1976, Kyser, indicated the purchase department has the different duty, is protec

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